Relief valve for steam radiators



July 24, 1951 H. J. MONTEVERDE 6 RELIEF VALVE FOR STEAM RADIATORS Filed Sept. 22, 1948 .INVENTOR,

$17.2 HARRY Momavzwa Patented July 24, 1951 UNITE D STATE S PAT E'NT OF F [CE] RELIEF VALVE EOR STEAM RADIATORS Harry-J. Monteverde; Maspeth, NaY. Apnlieation; September 22, 1948', Serial No; 50,503

This. invention.- relates. to. new and. useful improvements in air vent valves for. steamradiators, and, more particularly, the aim. is. to provide. a novel. and valuablevalve. for the. purpose stated and characterizedby an imnroved. simplicity of construction; a considerable decrease in size as comparedwith practicably. employable valves of the.-kinds.previously nroposed, the, total elimination. of. freely floatable or otherwisewholly loose parts, and. the inclusion of. a venting means which is; essentially rugged. and capable of long life Without. attentiong. which. venting. means, acting automatically to. open the valve for silently clear:- ing the radiator of trapped air andto closet-he valve to hold in the radiator the steam supplied thereto, .is easily and. quickly adjustable. by, even the. ordinary. householder and entirely from the exterior; of the valve...

Eor further. comprehension of. the, invention, and. of. the objectsand. advantages thereoi; ref.- erence. will, be had. to the following description and. accompanying drawings, and. to. the, ape pendedolaims in whiehthe. variousnovel. features of; the invention. are, more. particularly set. forth.

Inthe accompanying drawings. forming. a ma.- terial partrof. this disclosure:

Fig. 1. illustrates a pair of adjoining sections ofqaradiator,with .a.,now flavored embodiment of the, inventionattachedi thereto at an. end section thereof;

Fig... 2. isayietv showin said valve on an enlargedscale and. as. seen, in Fig. 1, but. with the valve, casing. partially broken away.

Fig.3 is, an end elevation of said'valve, looking toward. the right in. Fig, 3;. and at. this point. it may be. statedithat Figs. 2. and 3 show the valve drawn substantially to actual scale.

Fig.4. is. a. View similar to Fig. 3, butdrawnto a; scale. about twice. that. of Figs. 2' and 3, and with some, components of. the ventin means. in.- dicated in broken lines.

M Rig, 5 is. a. diametralisection, taken. on. the. line 5; 5 ofl ig- 4. y

Fig. .6 isanexplodedperspective view of. various components. of... the. venting means.

1558..7. isialdetailj View, for better. illustrating onaoiilsaid components thisview being; a section taken on the. line. 7--l of Fig, 6..

The new. valve, generally designated; H), is operative in the mannerand, with the. advantages abovesetfofih, when shaped as, shown. andwhen inoluding. a. casing of; a. diameter. of only, about 1%,? and ofahoutlike 1611511112. Asis well known, thelpresently mostlfavored valve is of. about that diameter but of; alength. of. almost. 4".

5' Claims. (01. 137;I22)" Said casing: incorporates a: main cuprishell Hr olosedi at its bottom byan inwardly dished: bottom wall l2. To facilitate mounting-:- the valvemember including portion of the ventingi means to be described: in a momentytheshellj I'll having a cylindrical? side wall desirably. fluted as indicated at It, has its; top. wall [=55 provided? by: a: separate member shown: aslin' the formof an out.- wardly dished cap having; an integral skirt l6 for-suitable securement, asJ-by a .threadedlrconnec tion or otherwise, to the top oft the sheltl-il.

Since the valve of the present invention: is adapted. for attachments to: a radiator: k1,. in" the ordinary manner ancoby way: of thefamiliarshorn zontally extended: drilledizand; tanned hole in: an end: section: of. the radiator Eli; and: sincathe valve Ill: as shown herein is arranged to.- carry; axially extended from its bottom walljaind suitably rigidly secured to. the latter; a: nipple:- I 8 externally threaded'tov match-the internal, thread in said hole,- thus; to; dispose: the valve. lzflv as shown.- in Fig.2 1%, from; now; on: the walls; l2: and I51 of. the: valve: Casing will berreierredz to, re:- spectively; as the: inner. and outer endw walls of the valve. l The forward: end. ofsaidinipple; l8 whereg'the same is. flanged; to; aid-i in. its:- tight attachment to: the inner end; wall?v I27, communicates: with: the interior of the valvefs' oasingby way offan-iopene ing. |9-in,.the-innenrend wail; I42

For escape"- of: trapped: air. fromztheavalve at its outer. end wall; 153. this; wall. is provided with: a suitable: plurality as... for" example. three: orifices 2'01. Forxclosing. all of saidorifices, or: opening: all

of. themqto alike amount-,and similanly tosopen them to various; extents. according 1' to: conditions; there ia swingably mounted on the inner" side-of the outer: end wall; I51 the: valvemember; Zl-r of the venting: means. i

The: valve member is armetalstampihghaw ing a main body generally U-shaped; inside: ele.-. vation; and-comprising awlargeruppen plate 2 2, and a. lowersomewhat. smaller: plate. 23;: integrally joined to-saidnpper. plate :by a redueedconnecton portion 24. This valve; member 2l-,,bymeans: of a pair of. curled: ears;25 integral;withsaidimemher and apivot: pinzfisalsoveneaged by alpairyof. curled ears 2'! on a plate:-braoketLZ fiLSuitably se"-- cured; to theinnergide-of theiouterendzwall. I5, is swingablycarried; by said; Wall; for; rotation about the axis of; the 'pin Z6; i

The upper, plate 1 2:2 of. the value. membeu 2.1:. is. provided with three-upstrucletea-ts 2a,. these for entering.- the.- orifices ill], toseal the valve against escape of. steamifrom therradiator. when. the valvethereby to withdraw the teats 29 from the orifices 20 and thus allow venting of the radiator,

as incidental to the admission of steam thereto.

For adjusting the tension of the spring 30, the same is secured in position between a stud-like teat 3| upstruck from the plate 23 of the valve member 2| and a collar 32 integral with and at the inner end of the threaded shank 33 of a screw 34; said screw also integrally carrying at its extreme inner end a reduced ortion 35 for coacting with the teat 3! in maintaining the spring 33in place.

For manual adjustment of the screw 34 the same-at the outer end thereof has an enlarged head 36; such head shown as knurled, although if desired the outer end of the screw may be mere ly'kerfed or otherwise shaped for being engaged and turned by a screw driver or other appropriate hand tool. With the screw 3 provided with the head 36 as shown of greater diameter than the threaded shank 33 of the screw, said head is preferably a separate part as illustrated, to aid in ready assembly of the valve member 22 and its associated elements. By way of example, the head 36 is illustrated as threadedly connected to a reduced outer threaded extension from the threaded shank 33 of the screw, and for being wrench-jammed tight on said shank.

' The outer end wall l of the valve casing has struck up therefrom a neck 3'1, and the latter is internally threaded, for taking the shank 33 of the screw 34; and for accommodation of the screws collar 32, the plate 22 of the valve mem ber 2| has an opening 38. r

The new valve is mechanically a silently operating one, and since the several orifices of fairlylarge size may be fully'opened when much air is in the radiator, there is, following a sudden inrush of steam at high pressure into a radiator more or less filled with air, no hissing during air venting like that which is given off by a radiator air vent valve of the type now generally used and characterized by the inclusion merely of a single minute air escape hole. The new valve, moreo'venhas no wholly floating or loose parts, the construction throughout is rugged, and the operationis reliable during prolonged use.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as de-- fined in the appended claims.

Having thus described my invention, what i claim as new, and desire to secure by United States Letters Patent is:

1. In a radiator air vent valve having a hollow casing including an end wall formed with a discharge opening, valve means for the discharge opening', comprising a bracket secured to the inner-face of theend wall remote from the discharge opening, a valve member within the body and pivotally mounted on said bracket, said valve member comprising a larger plate and a smaller plate, said larger plate contacting the inner face of the end wall and being of a size to extend over the discharge opening, said. smaller plate being integral with the larger plate at the pivoted end of said valve member and having a free end spaced from the adjacent face of said. larger plate, and means operating between the end wall and the free end of said smaller plate for pivoting said valve member away from the inner face of the end wall moving said larger plate clear of the discharge opening.

2. In a radiator air ent valve having a hollow casing including an end wall formed with a discharge opening, valve means for the discharge opening, comprising a bracket secured to the inner face of the end wall remote from the discharge opening, a valve member within the body and pivotally mounted on said bracket, said valve member comprising a larger plate and a smaller plate, said larger plate contacting the inner face of the end wall and being of a size to extend over the discharge opening, said smaller plate being integral with the larger plate at the pivoted end of said valve member and having a free end spaced from the adjacent face of said larger plate, means operating between the end wall and the free end of said smaller plate for pivoting said valve member away from the inner face of said end wall moving the larger plate clear of the discharge opening, and a teat pressed from said larger plate in alignment with the discharge opening and into which said teat projects when said larger plate is in contact with the inner face of the end wall.

3. In a radiator air vent valve having a hollow casing including an end wall formed with a discharge opening, valve means for the discharge opening, comp-rising a bracket secure to the inner face of the end wall remote from the discharge opening, a valve member within the bodyand pivotally mounted on said bracket, said valve member comprising a larger plate and a smaller plate, said larger plate contacting the innerface'of the end wall and being of a size to extend over the discharge opening, said smaller plate being integral with the larger plate at the pivoted end of said valve member and having a free end spaced from the adjacent face of said larger plate, and means operating between the end wall andthe free end of said smaller plate forpivoting said valve member'away from the inner face of the end wall moving said larger plate clear of the discharge opening, said pivoting means comprising a screw, an internally threaded neck on the end wall in alignment with the 7 free end of said smaller plate and through which said screw threadedly passes, and an expansionspring operating between the inner end of screw andfthe' adjacent face of the free end of said smaller plate.

4. Ina radiator air vent valve having ahollow casing including an end wall formed with a dis-, charge opening, valve means for the discharge opening, comprising a bracket secured to the inner face of the end wall. remote from the dis charge opening, a valve member within the body and pivotally mounted on said bracketsaid valve member comprising a larger plate 7 and, a smaller pIate said larger plate contacting the inner face of the end wall and being of a size to extend over the discharge opening, said smaller. plate being integral with the larger plate atth'e pivoted end of said valve member and havinga free end spaced from the adjacent face of said larger plate, and means operating between the end wall and the free end of said smaller plate for pivoting said valve member away from the inner face of the end wall moving said larger plate clear of the discharge opening, said pivoting means comprising a screw, an internally threaded neck on the end wall in alignment with the free end of said smaller plate and through which said screw threadedly passes, and an expansion spring operating between the inner end of said screw and the adjacent face of the free end of said smaller plate, said larger plate being formed with a large opening through which the inner end of said screw freely passes so that said valve member may freely pivot.

5. In a radiator air vent valve having a hollow casing including an end wall formed with a discharge opening, valve means for the discharge opening, comprising a bracket secured to the inner face of the end wall remote from the discharge opening, a valve member within the body and pivotally mounted on said bracket, said valve member comprising a larger plate and a smaller plate, said larger plate contacting the inner face of the end wall and being of a size to extend over the discharge opening, said smaller plate being integral with the larger plate at the pivoted end of said valve member and having a free end spaced from the adjacent face of said larger plate,

and means operating between the end wall and the free end of said smaller plate for pivoting said valve member away from the inner face of the end wall moving said larger plate clear of the discharge opening, said pivoting means comprising a screw, an internally threaded neck on the end wall in alignment with the free end of said smaller plate and through which said screw threadedly passes, an expansion spring operating between the inner end of screw and the adjacent face of the free end of said smaller plate, and an enlarged head on the outer end of said screw by which the screw can be advanced and retracted with relation to said neck for controlling the tension of said spring.

HARRY J. MONTEVERDE.

REFERENCES CITED The following references are of record in the 

